Curb and gutter form



Oct. 28, 1941.

' E. M. FO.RBES

CURB AND GU'iTERFORM Filed April 26, 1959 e Shets-Sheet 1' ATTORNEY Oct.28, 1941.

E. M. FORBES 2,260,447

CURB AND GUTTER FORM Filed April 26, 1939 6 SheetsSheet 2 INVENTOR.

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4 ATTORNEY Oct. 28, 1941, E. M. FORBES CURB AND GUTTER FORM eefs-Sheet 3Filed April 26 A tii N I Y 7 INVENTOR. 9%, 5045420 Oct. 28, 1941-. "E. MFORBES 2,260,447

CURB AND GUT'TER FORM Filed April 26, 1939 6 Sheets-Sheet 5 1N V EN TOR.

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- O BY I Q Oct. 28, 1941. E FOR ES I 2,260,447

CURB AND GUTTER FORM Filed April 26, 1939 6 Sheets-Sheet 6 .iNVENTOR.

ATTORNEY Patented Oct. 28, 1941 UNITED STATES PATENT OFFICE CURB ANDGUTTER FORM Edward M. Forbes, Virginia Beach, Va. Application April 26,1939, Serial No. 270,209

4 Claims.

The mold herein described is an improvement on the mold shown in myPatent No. 2,129,208, issued September 6th, 1938.

The object of my invention is to provide a mold for use primarily onstreets and highways, and one that is adapted for at least sixconditions found in such work.

Another object of my invention is to provide a mold of this characterthat is durable, simple, effective, and one which may be quickly andaccurately set up by unskilled labor.

Another object of my invention is to provide a self contained mold thatis self-sustaining and requires no extra stakes, and one that may bereadily separable from the molded concrete work, and the construction ofthe several parts is such that the concrete will not cement the partstogether.

Another object of my invention is to provide a'mold of this characterthat is adapted for use in forming curbs without a gutter; a curb andgutter; a divisional curb for highways; different widths of gutters,corners and all other requirements of street and highway conditions; andwith these and other-objects in view my inven tion consists of the partsand combination of parts hereinafter set forth.

In the drawings:

Figure 1 is a plan view of a complete section of my improved mold.

Figure 2 is a side elevation of the same looking in the direction of thearrow A in Figure 1.

Figure 3 is a side or rear elevation of my mold looking in the directionof the arrow B, Figure 1.

Figure 4 is an end elevation of my mold showing the parts extended forthe maximum width of the gutter.

Figure 5 is a similar view showing the parts in minimum width adjustedposition.

Figure 6 is a vertical sectional view on the line 6--6, Figure 5.

Figure '7 is a horizontal sectional view on the line 1-4, Figure 5.

Figure 8 is a horizontal sectional view on the line 8-8, Figure 5.

Figure 9 is an end elevation of my mold arranged for curb buildingsolely adjacent a completed highway road.

Figure 10 is a horizontal sectional view on the line Ill-l0, Figure 9. 1

Figure 11 is an end elevation ofmy mold arranged solely for building acurb for a dirt road.

Figure 12 is an end elevation of my mold set for building on a highway,a center traffic dividing curb or fence.

Figure 13 is a perspective view of a completed highway dividing curb orfence with electric light conductors therein and light posts mountedthereon.

Figure 14 is a detail sectional view, on a large scale, showing thelocking means for the two units of my mold.

Figure 15 is a detail horizontal sectional view on the line 15-45,Figure 14.

Figure 16 is a view similar to Figure 14 showing the two units of themold unlocked.

Figure 1'7 is a detail front elevation showing a I safety lock for thelocking means.

Figure 18 is a detail front elevation of a modified lock for the twounits,

Figure 19 is a side elevation of Figure 18 with the lock in unlockedposition.

Figure 20 is a similar view in locked position.

Figure 21 is a detail horizontal sectional view on the line Zl-ZI,Figure 20.

Figure 22 is a detail view looking in the direction of the arrows 22,Figure 23, showing a looking member for locking the mold section endstogether in alignment with each other,

Figure 23 is a plan view of the section locking member, the ends of thesections being shown in section.

Figure 24 is a vertical section on the line 24-24, Figure 22.

Figure 25 is a side elevation of the section locking element.

Figure 26 is a top ing element.

Figure 27 is a top plan view of my improved curve or corner mold.

Figures 28 and 29 are schematic views of the corner mold showing theslip joints adapted for different radius.

The reference numeral I designates a curb having an integral gutter 2formed of concrete.

My improved mold consists of two units A and B, the unit A beingpositioned back of the curb and the unit B in front of the curb, asclearly shown in the drawings, these frames A and B having a verticalabutting joint G.

It has been found in actual practice that it is most practical toconstruct these units in sixteen foot lengths, but, of course, it willbe understood that the length of the units may be determined by themanufacturer or user,

The unit A comprises a plurality of standards 3, preferably of angleshape, which are secured showing the parts plan view of the sectionlockat their lower portions to a plate 4 which is provided at its topedge with a flange 5 and at its lower edge with an oppositely extendingflange 6. The flange 6 extends outwardly from the plate 4 and isdesigned to rest on the ground, while the flange 5 extends inwardly fromthe plate 4 and constitutes a form for the top of the curb l. The plated'may be of any desired length and width, the width of the plate 4determining the heighth of the curb; r

The standards 3 are provided with a cam like slot 1 and a lock opening 8which is substantially in alignment with the top portion of the slot 1.A locking handle 9 is provided with an enlargement 10 provided at eachend witha trunnion move in the slots 1, as more clearly shown Figure 15.The lock handle 9 isprovided with'a locking hook 12 which is adapted,when inthe position shown in Figure 14, to engage the unit'B "of theform, as will be more fully hereinafter described. 7 I

. 'When the parts are in the position 'shownin Figure 14 it is desirableto hold them in that position until the concrete sets, and for thispurpose I may provide the bar I 3, which, at-its lower 'end is pivotedat M to the standard, the upper end of the bar being concaved, as at 15,to provide a snug and non slip connection between the two elements, thehandle '9, sealing in said concave.

As stated,'theplate 4-forms the rear face of the curb, while the flange*5 defines the top or elevation of the curb. I

The unit Bof mymold comprises a'rectangular frame l6, one verticalmember l1 of which has a flat smooth face 18 which's nugly contacts the"face #9 of the standards 3, and is provided with an elongated opening20 through which the hook i2 moves in its locking action to lock theunits together. This member, or element, l1-is also provided with lugs2| (see Figures 18 and 21) which fit, respectively, on the sides of thestandam 3 to prevent any relative lateral movement between ;the unitswhen in assembled position. 3 Depending from the recta'ngularframe I6 isan arm '22 to the lower-lend portion of which is secured the elongatedplate-2a which, in cross "section, is substantially a compound curve,the

upper edge portion 24 of which coacts with the *flange 5 of the unit Ain defining the height of the curb, while itslower edge 25 forms theconcave joint between the curb I and gutter 2. This plate 23 is of thesame length as'the plate 4. 1

' An arm 2'6 is secured to'the arm 22 of the unit B by any suitablemeans, such, for instance, thumb nuts'21 and 'slidablysecured to 1 thearm 26 is a similar arm 28. Thse'arins are inp'airs, as shown in Figure7, and are slidably secured together by means of bolts and nuts 29 andare held in spaced relation by means of sleeves 30 which are looselyfitted over the bolts '29. These arm's 2Bjare each 'provid'e'd'with lugs3|, The lug of one arm overlapping the other arm, as shown in Figure 6.

A plate 32,-of'the same length as the plates '4 "and 23, is secured tothe bottom portion of the standard 33 and is providedat its top edgewith an inwardly extending flange '34, defining the plane of'the topface of the gutter-2, and at its bottomedge with an outwardly extendingflange 35, which, generally, is positioned on the ground in the samehorizontal plane 'with the flange 6 or thejuriitA. fl The standard salsconnected with 5 the surface of the dirt 36. That is to say, asclearly shown, one set of arms 26 are secured to the standards 33 whilethe other set of arms 26 is secured to the standard 22 whereby thestandards 33 and 22 may be 5 free to be moved toward or away from eachother. For instance, in Figure 4 the units A and B are shown Wider apartto provide, say, a thirty-four inch gutter, while in Figure 5 they arespaced to provide a twenty-four inch gutter.

To brace the standards 33 I provide an arm 31, one end of which ispivoted to the standard 33, as at 38, while its other end is bolted at38 "to the rectangular frame #6, whereby the standards 33 are bracedthrough the arm 31, frame I6,

15 to the rear standards l1 of the unit A, thus firmly II, whichtrunnions are adapted to enter';and'

y and rigidly securing units A and B together. The arm 31 has aplurality of openings 39 which will be later referred to.

There are some instances in which a cement roadway 46 (see Figure 10)exists to which it is desiredto add a curb M. 'In such a' case I removefrom the unit B the standards 33 and plate 32 and secure to the outerends of the arms 26 any suitable support, such as 42, having an elon- 25gated slot 43 in which the bolts 44 may be adjusted in placing the unitA in proper vertical 7 position for correctly molding the curb 4!. Ithen secure the armby ineans'of a'bolt positioned in the proper'hole 39,as shown in Figure 9.

Again, there are instan'cesin which it is desired to add a cement curbto a dirt road 45, as shown in Figure 11. In such a case I remove fromunit B the standard 33, plate 32 and arms 26. In this is adjusted alongroad until the curb forming mold parts are in proper vertical positionwhereupon the free end of the arm 31 may be depressed in the dirt roadbed to brace the parts in proper position.

In Figure 12 I have illustrated the use and arrangement of two of thesections B to form a curb or fence C in the center of a highway fordividing traffic, parts of section B being detached 'when such sectionsare used for this purpose. In

case the free end of the arm 31 =4 the formation of the curb, or fence,C, conduits D may be placed in position to receive the electric wires Eand said conduit'will have outlets over which lighting post F may bepositioned.

The plates 23 may be of any desired width.

After the sections of my approved mold are arranged in position-theabutting ends of the sections are locked "together by means of a lockinglever 46 .which'is provided with a pin 48; the forked'end 41 is adapted,as shown in Figure 23, to flt'over the end flanges 49 at the ends of themold sec tion boards 4, said flanges having anopeningfi fl to receivethe pin 38 (see Figures 22, 23,24, 25 and 26) In Figure l8, l9, 20-and21 I have illustrated a slightly modified form of catch to lock thelocking le-ver 9 in its locked position. 'Thi's'fcatch 5! is forked atits upper end 'to straddle the lock 9 to which it is-pivotally secured"as at "52; the

' catch being slightly bowed 'asclearly shown in Figures 19 and 20. Thestandards Ha being provided with a lug orstopi52 against which the loweredge of the catch 5| rests when the lock 9 is in its locked position, asshown in Figure 20,

m looking the sections A and B'together.

Referring now to Figures2'7, 28 and '29, itwill be seen that the formisarranged for constructing around corners at intersections of highways,and the frames A and B are the same for. this 'the'armsi26by"suitable-means, such 'asthe bolts *work'as has heretoforebe'endescribed, aportion which has a forked end 41, one fork of of the frameB appearing between the bifurcated end of the member 31.

The plates 4a perform the same function as the plates 4, while theplates 23a perform the same function as the plate 23, and the plates 32aperform the same function as the plates 32. The plates 4a, 23a and 32aare made up of a plurality of overlapping members, as clearly shown inthe Figures 27, 28 and 29, so that they may slide one upon the other inthe formation of different radii. Attached to the end frames of thiscorner section are rods 54 provided with screw threads 55 which areengaged by the nuts 56 by means of which the radii of the corner sectionmay be changed as desired. Attached to one of the frames B is anabutment 51 which bears on the stationary member 58, said abutment 51functioning as a fulcrum from which the plates are bowed to the desiredradii. The adjusting nuts 55 are revoluble in the stationary element 58.

What I claim is:

1. In a mold for use in forming cement curb and gutter, a standard, acurb rear face plate secured at the bottom of said standard and havingoppositely extending flanges at the top and bottom thereof, a cam slotand a perforation in said standard, a locking handle pivotally mountedin said cam slot, a locking hook extending from one end of said handle,a frame having a vertical member, a perforation through said member,adapted to receive the locking hook on said handle whereby the saidstandard and the said vertical member are locked together, and a gutterforming mold carried by said frame.

2. In a mold for use in forming cement curb and gutter, a standard, acurb rear face plate secured at the bottom of said standard and havingoppositely extending flanges at the top and bottom thereof, a cam slotand a perforation in said standard, a locking handle pivotally mountedin said cam slot, a locking hook extending from one end of said handle,a frame having a vertical member, a perforation through said member,adapted to receive the locking hook on said handle whereby the saidstandard and the said vertical member are locked together, and means tolock said handle in locked position, and a gutter forming mold carriedby said frame.

3. In a mold for use in forming cement curb and gutter, a standard, acurb rear face plate secured at the bottom of said standard and havingoppositely extending flanges'at the top and bottom thereof, a cam slotand a perforation in said standard, a locking handle pivotally mountedin said cam slot, a locking hook extending from one end of said handle,a frame having a vertical member, a perforation through said member,adapted to receive the locking hook on said handle whereby the saidstandard and the said vertical member are locked together, an outer curbface mold plate secured to the bottom of said frame, an arm secured tothe bottom of said frame, an arm adjustably secured to the first namedarm, a standard secured to the outer end of the second named arm, agutter mold secured to the bottom of said last named standard, and agutter forming mold carried by said frame.

4. In a mold for use in forming cement curb and gutter, a standard, acurb rear face plate secured at the bottom of said standard and havingoppositely extending flanges at the top and bottom thereof, a cam slotand a perforation in said standard, a locking handle pivotally mountedin said cam slot, a locking hook extending from one end of said handle,a frame having a vertical member, a perforation through said member,adapted to receive the locking hook on said handle whereby the saidstandard and the said Vertical member are locked together, an outer curbface mold plate secured to the bottom of said frame, an arm secured tothe bottom of said frame, an arm adjustably secured to the first namedarm, a standard secured to the outer end of the second named arm, agutter mold secured to the bottom of said last named standard, a gutterforming mold carried by said frame, and a bracing arm secured at oneendto the last named standard and secured at its other end to saidframe.

EDWARD M. FORBES.

